Question

The earth's radius is 6370km. Determine the following:
a) the surface area of earth
b) the circumference of earth
c) the surface area of each hemisphere ​

Answer 1

Step-by-step explanation:

Correct option is

A

127527400

Area of land = (1−

4

3

)× Surface area of a sphere of radius 6370 km

=

4

1

×4πr

2

=

7

22

×(6370)

2

km

2

=127527400km

2